Emergency-rim.



H. c. SAMPSGN @L A.-F. FARMAN.

EMERGENCY RIM.

APPLICATION FILED 1AN.4, 19H3.v

mmmgwh l mntedglulyw, 1917.

@noauto/L 50 v erably lof rubber and solid in cross section cla1In:-

HENRY c. sAMPsoN, or SAN-FRANCISCO. AND ARTHUR r. FARMAN, or OAKLAND,

v l v cALrronivIA. r

EMERGENCY-RIM.

raaaeai; ,V-

, Specieation of Letters.Patent Patented July llil, i917".

lApplication filed January 4, 1916. Serial No. 70,092.

' United States,` residing at San Francisco circled by amain tirecarrying'` rim 2 shown r and Oakland, respectively, in the counties ofSan Francisco and Alameda and State of California, have invented new anduseflil `Improvements in Emergency -Rims, of which the following is aspecification.

This invention relates to emergency rims andv tires for vehicle wheelsbeing especially adapted for use in combination with a pneumatic tire sothatin the-event of the punc-vv turing or blowing4 out or collapse ofthev pneumatictire, the emergency' tire will 'beiV used to support theload thereby preventing "r any further or additinal'injuryito thepneuopposite side ofthe wheel each arm is pro-- vided' with an outwardlyextending stop Alip 1or portion 9 which bears against the adj'aa centside or flange of the main rim2. Therel"fore, the main rim 2 acts toclamp all of' matic tire until a place of repair is reached. Theemergency tire also operates to prevent a punctured orl collapsedpneumatic tire from rolling `o the rim or felly of the wheel and is alsouseful when the machine is stored for a long period of time to take. theweight off the pneumatic tires thereby increasing the life anddurability of the latter. l

With theabove and other objects in view, the invention consists in thenovel construction, combination and arrangement of parts,

as herein describedillustrated andl claimed.

, L llnl the accompanying drawings v:-

Fig. 2 is an4 enlarged cross sectionallview, l showing the emergencytire, rim and retaining means, in the relation thereof to the vehiclewheel felly and the 'main pneumatic y tire and its rim.

Fig. 3 is a vertical longitudinal/section-on the line 3 3 of Fig.2.` f yr f Referringto the drawings 1 designates the ufelly `of a vehicle wheelsuch as isnow commonly employed for automobiles, motor trucks and thelike,'the felly 1 being enas equipped with an ordinary pneumatic tire...I y

In carrying out the present invention I- provide an emergency tire 4whlch 1s pref- So that it is not liable to collapse, the tire' 4 `beingcarried by an emergency rim 5.- 11n order to secure-`v` the rim 5 infirm and fixed relation to the main rim 2 and the felly. l,l

the emergency rim 5 is provided intervals with retaining means shown inthe form of arms extending laterally therefrom and leach embodying asubstantially straight body portion 6 which is inserted between thefelly 1 and the rim -2 and which preferably lies in a recess or seat 7formed in the'outer face` of the felly so as not to interfere with themain rim .2, permitting the latter to rest upon and come in contact withthe felly 1.

Each a'rm`` is provided at one end with aninwardly extending stop lip orextension 8fwhich bears against one of the side faces ofthe felly l aslshown in Fig. 2thereby preylenting the arm from moving in one direction-laterally of the Wheel. At the thel arms of the emergency rim againstthe 'felly of the wheel.

that the tread surface of the emergency 'tire l 4 will normally lieinside of the corresponding tread surface of the pneumatic tire 3thereby enabling the last ynamed tire to perform its usualfunction.When, however, the pneumatic f tire- 3 collapses from any causewhatever, ,the load of the vehicle and its occupants is immediatelytransferred to the emergency tire 4 thereby preventing any additional or.further injury tothe pneumatic tire until a place of repair isreached.v Where 4the main rim 2 is ofthe demount-` able type, it will bereadily understood that by removing such demountable rim, the

sition in relation tothe felly of the wheel and then whenthe'demountable rim 2 is emergency rim may be placed in proper pomonlyemployed, the demountable rim will serve to securely clamp the emergencyrim in fixed relation to the felly. By reversing the operation, theemergency rim with its tire may be easily removed from the wheel.

HavingI thus described our invention, We

The combination with the felly of a vethereby, a pneumatic tire on saidrim, an securing the main rim and said'supporting `emergencytire-carrying vrim arranged at arms in fixed relation to the felly. vthe vouter side of the main'rim, and compris- In testimony whereof weaiiX our signaillg supporting 1armsharrangefd ativ intevals tures inpresence f two witnesses.` 5j t roughout the engt .thereo an 'eac eX- ,vtending through a' mortise in the `felly under f and transversely of themain and embodying an inwardly extending llip which Witnesses:

bears against the side face -of the felly op- FRED L. BUTTON, .10 positethe emergencyrm, and means for E. H. BUTTON.

